JP2012242042A - Solar heat collector having multiple trough type reflectors - Google Patents
Solar heat collector having multiple trough type reflectors Download PDFInfo
- Publication number
- JP2012242042A JP2012242042A JP2011114732A JP2011114732A JP2012242042A JP 2012242042 A JP2012242042 A JP 2012242042A JP 2011114732 A JP2011114732 A JP 2011114732A JP 2011114732 A JP2011114732 A JP 2011114732A JP 2012242042 A JP2012242042 A JP 2012242042A
- Authority
- JP
- Japan
- Prior art keywords
- solar heat
- heat collector
- solar
- reflectors
- snow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/80—Accommodating differential expansion of solar collector elements
- F24S40/85—Arrangements for protecting solar collectors against adverse weather conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/87—Reflectors layout
- F24S2023/874—Reflectors formed by assemblies of adjacent similar reflective facets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
Description
本発明は、太陽熱収集器に関するものであり、特に集熱管とトラフ型反射鏡にて集熱
を行う太陽熱収集器に関する。
The present invention relates to a solar heat collector, and more particularly to a solar heat collector that collects heat with a heat collecting tube and a trough reflector.
従来、この種の太陽熱収集器では、太陽に向かい合ったトラフ状の反射鏡で集光した
太陽光を反射鏡の焦点に配置した集熱管により集熱する方式が主である。
この際、集熱の効率を上げるため反射鏡は、太陽に向かった全面が集熱管をはさんで
トラフ型に一定の焦点距離で配置されている。（例えば特許文献１）
Conventionally, this type of solar heat collector mainly collects sunlight collected by a trough-like reflecting mirror facing the sun by a heat collecting tube arranged at the focal point of the reflecting mirror.
At this time, in order to increase the efficiency of heat collection, the reflecting mirror is arranged in a trough shape with a constant focal length across the heat collection tube across the entire surface facing the sun. (For example, Patent Document 1)
しかし、上述した従来の太陽熱収集器では、反射鏡が集熱管に対し十分全面に配置
されているため、屋外への設置時には風力を反射鏡全面で受けてしまうこととなり、
風速が早い場合には太陽熱収集器自体が破損する危険性が高くなる。
However, in the conventional solar collector described above, the reflecting mirror is arranged on the entire surface sufficiently with respect to the heat collecting tube, so that when installed outdoors, wind power is received on the entire reflecting mirror surface.
When the wind speed is high, the risk of damage to the solar collector itself increases.
また、同様に、降雪時には、反射鏡の下側に積雪しやすくなり、降雪が続いた場合、
最終的に反射鏡のほぼ全面が雪で覆われてしまい太陽熱収集器の集熱能力が失わ
れてしまうという問題もある。
Similarly, when it snows, it is easy to accumulate snow on the lower side of the reflector.
Eventually, almost the entire surface of the reflector is covered with snow, and the solar collector's ability to collect heat is lost.
そこで、本発明は、上記の問題を軽減し、屋外の風雪にも耐力のある太陽熱収集器を
提供するものである。
Accordingly, the present invention provides a solar collector that reduces the above-described problems and is resistant to outdoor wind and snow.
本発明は、上記課題に対し焦点距離の異なるトラフ型反射鏡を有している。 The present invention has trough reflectors having different focal lengths for the above-mentioned problems.
焦点距離の短い反射鏡は、焦点距離の長い反射鏡の内側に配置され、更に交互に
位置しており、双方の反射鏡に共通となる焦点位置には集熱管が置かれている。
The reflectors with short focal lengths are arranged inside the reflectors with long focal lengths, and are alternately positioned. A heat collecting tube is placed at a focal point common to both reflectors.
この配置において双方の反射鏡間では、焦点方向及び上下方向に隙間を有すること
となり、その隙間から風が抜けるため、風力を逃がす効果が発生する。
In this arrangement, there is a gap in the focal direction and the vertical direction between the two reflecting mirrors, and wind escapes from the gap, so that the effect of escaping wind power occurs.
また、隙間を有したことにより、反射鏡への積雪は遅れる上、融雪時には早く雪が
隙間から落下していくこととなり、太陽熱収集能力を高く維持できることとなる。
Further, since the gap is provided, the snow accumulation on the reflecting mirror is delayed, and when the snow melts, the snow quickly falls from the gap, and the solar heat collecting ability can be maintained high.
よって、本発明は風で受ける力を低減し、風害による機器の破損を減少させることが
可能となり、且つ積雪時にも太陽熱収集能力を極力下げないような効果を提供する
ものである。
Therefore, the present invention can reduce the force received by the wind, can reduce the damage of the equipment due to wind damage, and provides an effect that the solar heat collecting ability is not lowered as much as possible even during snow accumulation.
次に本発明の一実施例について図面を参照して説明する。図１は本発明の一実施例の
太陽熱収集装置の斜視概観図であり、図２は本発明の一実施例の側面概観図である。
Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a solar heat collecting apparatus according to an embodiment of the present invention, and FIG. 2 is a side view of an embodiment of the present invention.
本発明の太陽熱収集装置は、集熱管１と集熱管１に焦点が合ったトラフ型の長焦点
反射鏡２及び短焦点反射鏡２aからなっている。
The solar heat collecting apparatus of the present invention is composed of a heat collecting tube 1 and a trough-type long focus reflecting mirror 2 and a short focus reflecting mirror 2a which are focused on the heat collecting tube 1.
このとき、集熱管１は太陽高度の変化に幅広く追従するために複数本の集熱管１の
集合体としてもよい。
At this time, the heat collection tube 1 may be an aggregate of a plurality of heat collection tubes 1 in order to widely follow changes in solar altitude.
また、反射鏡は複数の焦点距離のものを多重化してもよい Further, the reflecting mirrors may be multiplexed with a plurality of focal lengths.
短焦点反射鏡２aは、集熱管1に向かって長焦点反射鏡２より内側にあり、各反射鏡は
交互に配置される。
The short focus reflector 2a is located inside the long focus reflector 2 toward the heat collecting tube 1, and the reflectors are alternately arranged.
この状態において、太陽光は、光路４を辿り集熱管１に集光されるが、前方からの受け
る風に関しては、長焦点集光鏡２と短焦点集光鏡２aの隙間３から抜けていくことが
可能となり、風力を軽減できる。
In this state, sunlight follows the optical path 4 and is collected on the heat collecting tube 1, but the wind received from the front passes through the
また、降雪に対しては、積雪はするものの隙間３から一部の雪は通り抜けていくことと
なり、反射鏡への積雪速度は遅くなる。
In addition, in the case of snowfall, although snow is accumulated, a part of the snow passes through the
特に高い位置の反射鏡では下側に位置する反射鏡の積雪の影響を受けにくい。 In particular, the reflector at a high position is not easily affected by the snow cover of the reflector located below.
更に、着雪した場合でも、融雪時には隙間３から溶けた雪が落下していくため早い
段階に反射鏡面が露出し、集光能力を早く回復することができる。
Further, even when the snow has arrived, the melting surface of the reflecting mirror is exposed at an early stage because the melted snow falls from the
１．集熱管
２．長焦点集熱管
２a．短焦点集熱管
３．隙間
４．光路
５．従来技術の反射鏡
６．太陽
1. 1. Heat collecting tube Long focal heat collecting tube 2a. 2. Short focus heat collecting tube Gap 4. 4. Optical path Prior art reflectors6. solar
Claims (4)
反射鏡を有することを特徴とする太陽熱収集器。 A solar heat collector for collecting solar heat with a heat collecting tube and a reflector, the solar heat collector having a reflector having a different focal length.
多重配置されることを特徴とする請求項１記載の太陽熱収集器。 2. The solar collector according to claim 1, wherein the reflectors having different focal lengths are arranged in a multiple manner toward the focal point.
配置されることを特徴とする請求項１〜２記載の太陽熱収集器。 3. The solar collector according to claim 1, wherein the reflectors having different focal lengths are alternately arranged in the vertical direction.
１〜３記載の太陽熱収集器。 The solar heat collector according to claim 1, wherein a gap is provided between the reflecting mirrors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011114732A JP2012242042A (en) | 2011-05-23 | 2011-05-23 | Solar heat collector having multiple trough type reflectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011114732A JP2012242042A (en) | 2011-05-23 | 2011-05-23 | Solar heat collector having multiple trough type reflectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2012242042A true JP2012242042A (en) | 2012-12-10 |
Family
ID=47463937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011114732A Withdrawn JP2012242042A (en) | 2011-05-23 | 2011-05-23 | Solar heat collector having multiple trough type reflectors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2012242042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837972A (en) * | 2013-12-10 | 2014-06-04 | 杭州奕华能源科技有限公司 | Repeated refraction light gathering device |
| JP2015010748A (en) * | 2013-06-28 | 2015-01-19 | 三菱日立パワーシステムズ株式会社 | Trough-type solar heat collection device |
-
2011
- 2011-05-23 JP JP2011114732A patent/JP2012242042A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015010748A (en) * | 2013-06-28 | 2015-01-19 | 三菱日立パワーシステムズ株式会社 | Trough-type solar heat collection device |
| CN103837972A (en) * | 2013-12-10 | 2014-06-04 | 杭州奕华能源科技有限公司 | Repeated refraction light gathering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20140805 |